mmarton Posted August 20, 2020 Share Posted August 20, 2020 2005 Legacy N/A with a little over 200K mils. In the last week, I've noticed a humming sound from around the dash immediately after I start the car. It goes away in a few seconds. I don't know if it's a relay or something. Typically, I drive to work, leave it parked all day and when I leave at night, the same hum occurs at start up for a few seconds. Any ideas? Link to comment Share on other sites More sharing options...
jaylew Posted August 20, 2020 Share Posted August 20, 2020 do you have auto A/C? Wagon is LIFE! - 265,000 miles and climbing Unofficial Build (Restoration) Thread Steering Rack Rebuild Link to comment Share on other sites More sharing options...
mmarton Posted August 21, 2020 Author Share Posted August 21, 2020 Yes, auto A/C. Ltd. wagon. Link to comment Share on other sites More sharing options...
jaylew Posted August 21, 2020 Share Posted August 21, 2020 Does it sound like a drip coffee pot percolating? If so then it is the A/C actuators. Only other common dash related noise is the locating clips for the dash against the firewall but those rattle and would be all the time. Wagon is LIFE! - 265,000 miles and climbing Unofficial Build (Restoration) Thread Steering Rack Rebuild Link to comment Share on other sites More sharing options...
mmarton Posted August 21, 2020 Author Share Posted August 21, 2020 Does it sound like a drip coffee pot percolating? If so then it is the A/C actuators. Only other common dash related noise is the locating clips for the dash against the firewall but those rattle and would be all the time. It's a low hum/buzz that lasts about five seconds every time I start the car. It sounds like it's coming from behind the dash, between the instrument cluster and the head unit. Link to comment Share on other sites More sharing options...
chato Posted August 21, 2020 Share Posted August 21, 2020 (edited) could be the fuel system priming. the fuel pressure regulator is on the driver side shock tower and I noticed humming when I upgraded to an STI FPR with less insulation from the chassis. It sounds like it is coming from the dash. Edited August 22, 2020 by chato Link to comment Share on other sites More sharing options...
mmarton Posted December 10, 2020 Author Share Posted December 10, 2020 OK, car wouldn't start today. Could that buzzing noise have been the ignition switch? Link to comment Share on other sites More sharing options...
apexi Posted December 10, 2020 Share Posted December 10, 2020 So the buzzing happens after you start not, not before like in this video? Link to comment Share on other sites More sharing options...
mmarton Posted December 10, 2020 Author Share Posted December 10, 2020 So the buzzing happens after you start not, not before like in this video? Yes, the buzzing happens after the engine starts. My car wouldn't start this morning and it just needed a new starter. Would the starter switch buzz? Link to comment Share on other sites More sharing options...
MaasaiWarrior Posted December 11, 2020 Share Posted December 11, 2020 Pull the fuse for the radio, my friend had this for a couple days then the damn cd changer spat out a cd he didn't even know was in there from the previous owner 08 Spec B, insta: @08_spec_b, 10 SH Forester insta: @shfozzy Link to comment Share on other sites More sharing options...
mmarton Posted December 21, 2020 Author Share Posted December 21, 2020 Alright then. How about the HVAC blend door actuator? Since the weather turned colder, I noticed that I'm not getting significant heat in the cabin. This past weekend, I had a new radiator installed and asked the shop to look at the thermostat. The tech said I needed a new blend door actuator. I found a great Youtube video on changing the actuator out, and another with the noise a bad one makes. The noise in my dash sure sounds like it. The part is cheap. I hope to replace it myself as I'm getting quotes of $600 and more. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now